China News Service, Shanghai, July 1 (Reporter Yin Liqin) The Shanghai Meteorological Bureau announced on July 1 that Shanghai officially began plumbing today, 9 days earlier than usual.

Since the official entry into the Meiyu season on June 12, Shanghai has spent 19 rainy days, 2 days less than usual.

Since June, the atmospheric circulation situation has shown obvious periodic adjustments.

This year's plum rainy season in Shanghai is dominated by procedural precipitation, which is characterized by the "atypical" characteristics of "less rain and high temperature".

As of 20:00 on June 30, the average plum rainfall in Shanghai was 61.8 mm, 70% less than normal, and the urban rainfall was 88.8 mm, nearly 70% less than normal.

Precipitation presents the characteristics of uneven spatial distribution. The precipitation is mainly concentrated in the western and northern regions, and the most is Xinhai Town, Chongming District, with a cumulative rainfall of 152.1 mm.

But at the same time, there are many high temperature days above 35℃.

From June 12th to 30th, the number of high temperature days in the urban area was 5 days, which ranked third in the same period in history with 1893 (the top two were 8 days in 1925 and 6 days in 1934 and 2005).

Overlooking the cityscape at the Top of Shanghai Sightseeing Hall in Shanghai Center Photo by Yin Liqin

　　The Shanghai Central Meteorological Observatory forecasts that after the plum blossoms, there will be many afternoon thunderstorms in Shanghai.

In the coming week, the extreme maximum temperature in Shanghai will reach 35 to 36 ℃.

As the subtropical high rises northward, the Northwest Pacific tropical system tends to become active.

This year's No. 03 typhoon "Siamba" was generated at 8:00 yesterday (30th) in the central and eastern part of the South China Sea. It will land on the coast from the eastern part of Hainan Island to the western part of Guangdong from the afternoon of July 2 to the early morning of July 3. No direct impact.

In addition, there are tropical low pressure activities east of the Philippines, which may intensify into this year's No. 4 typhoon "Avery" and will enter the eastern waters of the East my country Sea on July 3, which will bring certain impacts to the East my country Sea and the coastal areas of East China. wind and rain effects.

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